jpa relationship-Google app engine
- by megala
I created two tables in google appengine datastore using JPA.
Table1:
*groupname pk
*groupid
*groupdesc
*emailper
Table2:
*groupname
*memberid
*membername
My constraint is if i enter data into table2 it check whether group already exists or not in table.If exists than only it store the data into table .How to solve this?